Interactive Geometry Exercises for Teens

I want to turn key geometry topics into a series of self-contained, interactive exercises that hold the attention of 13- to 18-year-olds and guide them from basic definitions through applied problem-solving. The material will live online, so everything must run smoothly inside a modern browser on laptops, tablets, and phones without extra plug-ins.

Each exercise should let students manipulate shapes, drag-and-drop measurements, or toggle construction steps, then receive instant feedback that explains both correct and incorrect choices. Where possible, visual hints and short, in-context explanations should replace long text blocks; the goal is “learn by doing.”

Deliverables
• A collection of interactive geometry activities packaged as HTML5/JavaScript (or another lightweight, cross-platform framework) files ready for direct upload.
• Clear teacher/administrator notes describing the objective, expected time on task, and the concept assessed by each activity.
• Source files and concise documentation so future edits or translations are straightforward.

Acceptance criteria
• Exercises load in under three seconds on a standard school network.
• All interactions work on Chrome, Firefox, Safari, and Edge, plus iPad and Android tablets.
• Automatic scoring resets cleanly between sessions and stores no personal data.

Keep the visual style simple, bright, and teen-friendly—nothing childish, but still approachable. If you have sample interactive work or quick prototypes, that will help me see your approach before we lock the final scope.